GM has announced that pre-production units of the 2017 Chevrolet Bolt are rolling off the assembly line. The company released photos and a video from its plant in Orion Township, Michigan, showing the white and grey newborns trundling down the line in their cradles.

Chevrolet has not announced a firm target date for the first Bolt deliveries, but has said that retail production won’t start until “the end of this year.”

Between now and then, engineers will be working with assembly line staff to test the plant’s new tooling and refine the intricate dance of parts delivery, vehicle assembly and quality control.

“We’re at another critical and important point in the development of the Bolt EV,” said Josh Tavel, the Bolt’s Chief Engineer. “We’ve moved from working in math, and building cars by hand, to building Bolt EVs on the line.”

Source: Chevrolet via Green Car Reports